Remove unused variable from the ci.yml

.github/workflows/ci.yml

@@ -42,7 +42,6 @@ jobs:
       run: |
         echo REPOSITORY_NAME=$(echo "$GITHUB_REPOSITORY" | awk -F / '{print $2}' | sed -e "s/:refs//") >> $GITHUB_ENV
         echo DATETIME=$(echo $(date '+%Y%m%d-%H%M%S')) >> $GITHUB_ENV
-        echo COMMIT_MESSAGES=$(echo "${{join(github.event.commits.*.message, '||END||') }}" |  sed -e 's/||END||/\r\n/g') >> $GITHUB_ENV
     - uses: actions/download-artifact@master
       with:
         name: binary